The third and supposedly final installment in the Gears of War trilogy. Taking place on the apocalyptic planet Sera, 18 months after the ending of Gears of War 2, players will once again take control of C.O.G. soldier Marcus Fenix as he takes on the Locust threat and their Lambent rivals.

(little spoiler) It doesn't matter if the ai people shoot any. As long as you do not shoot any the achievement will unlock when you are about to meet Griffin. You'll see a lady behind a barred door and she'll say "I guess not all COG are not that bad" (or something to that effect) and open the door to a fully loaded ammo room.

(little spoiler) It doesn't matter if the ai people shoot any. As long as you do not shoot any the achievement will unlock when you are about to meet Griffin. You'll see a lady behind a barred door and she'll say "I guess not all COG are not that bad" (or something to that effect) and open the door to a fully loaded ammo room.

@The_Laughing_Man: (SMALL SPOILER) its a late game mission called ashes to ashes if you don't damage any of ash people when you get to were you are going look for a room with iron bar door with a women inside and walk up to it, you will know if you succeed

Hmm, I'm sure I shot some of the ash-bodies, and I got the ammo storage and that comment, I think. Not completely sure, but around 85% sure. I definitely got a bunch of ammo and some weapons right after Ice-T's memorable performance.